Welcome to Europe. I have very rarely seen any commuter in Europe wearing protective gear, they ride in their usual street clothes. In Amsterdam you see women riding in dresses all the time. It is the norm. If you go over and wear a helmet people look at you funny. We are obsessed with "safety" primarily because we have let lawyers and the government dictate our actions. The people commuting there aren't riding fast generally and are riding upright mosedl similar to what is in the picture, sans front basket.

Here, I do wear a helmet. The places I ride have no bike lanes and the people around me are not as bike friendly as they are in most European countries.